I had a Pro Leopard for a few months, and it was very straight for me. But, I grip-locked it into a lake. Just today I got a replacement Leopard Pro, and a light (148g) Pro Tern, and new, in very limited use, both seem much straighter than my multiple Leopard Dx and Star Terns. Is that just small sample size, or is Pro plastic straighter? Thinking of getting some more Pro plastic, so also wondering, does Pro plastic hold up well? Separate from that, my son and I throw multiple Roadrunners between us, and they seem pretty straight - we see very little of that huge -4 turn number. Almost seems like they should be -1/1, instead of -4,1. Others, do Roadrunners match that -4 turn for you? Thanks for any input.